1. Go’s Data Structures Basic types Boolean: bool Integer: byte, int, int8, int16, uint, uintptr Floating point: float32, float64 Complex: complex64, complex128 String: string Character: rune Error: error Composite types Pointer: pointer Array: array Slice: slice Dictionary: map Channel: chan Struct: struct Interface: interface A Go variable identifier is made up of letters, digits, and underscores, and its first character cannot be a digit.